Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
Array comparison, less than.
template<Ty, std::size_t N>
bool operator<(
const array<Ty, N>& left,
const array<Ty, N>& right);
Parameters
Ty
The type of an element.N
The size of the array.left
Left container to compare.right
Right container to compare.
Remarks
The template function overloads operator< to compare two objects of template class array Class (STL). The function returns lexicographical_compare(left.begin(), left.end(), right.begin()).
Example
// std_tr1__array__operator_lt.cpp
// compile with: /EHsc
#include <array>
#include <iostream>
typedef std::array<int, 4> Myarray;
int main()
{
Myarray c0 = {0, 1, 2, 3};
// display contents " 0 1 2 3"
for (Myarray::const_iterator it = c0.begin();
it != c0.end(); ++it)
std::cout << " " << *it;
std::cout << std::endl;
Myarray c1 = {4, 5, 6, 7};
// display contents " 4 5 6 7"
for (Myarray::const_iterator it = c1.begin();
it != c1.end(); ++it)
std::cout << " " << *it;
std::cout << std::endl;
// display results of comparisons
std::cout << std::boolalpha << " " << (c0 < c0);
std::cout << std::endl;
std::cout << std::boolalpha << " " << (c0 < c1);
std::cout << std::endl;
return (0);
}
0 1 2 3 4 5 6 7 false true
Requirements
Header: <array>
Namespace: std